CN206233276U - A kind of pretest pile static pressure bringing device - Google Patents
A kind of pretest pile static pressure bringing device Download PDFInfo
- Publication number
- CN206233276U CN206233276U CN201621230012.4U CN201621230012U CN206233276U CN 206233276 U CN206233276 U CN 206233276U CN 201621230012 U CN201621230012 U CN 201621230012U CN 206233276 U CN206233276 U CN 206233276U
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- cast
- fixing bolt
- screw jack
- reaction frame
- pretest
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Abstract
The utility model discloses a kind of pretest pile static pressure bringing device, including cast-in fixing bolt（1）, reaction frame（2）, screw jack（3）, manual tensiometer（4）, steel plate cushion block（5）With prestress stake（6）, described cast-in fixing bolt（1）One end is arranged in foundation platform；Cast-in fixing bolt（1）The other end and reaction frame（2）Threaded one end is connected, reaction frame（2）With cast-in fixing bolt（1）Connection end is supported on foundation platform；Screw jack（3）Welded top is in reaction frame（2）Inner chamber beam surface on；Manual tensiometer（4）Installed in screw jack（3）Handle on；Steel plate cushion block（5）Installed in prestress stake（6）Top and screw jack（3）Bottom centre position, using the technical solution of the utility model, can solve when prestress is applied to stake, it is impossible to the succinct problem for being quickly obtained applied prestressed size and the stake of quick envelope.
Description
Technical field
The utility model is related to a kind of static pressure bringing device, more particularly to a kind of pretest pile static pressure bringing device, belongs to and builds
Build field.
Background technology
Pretest pile underpinning technique is initially to build a kind of ground of William street underground railway when institute utility model in New York
Underpinning technique, people are again according to the principle of pretest pile underpinning technique, jacked pile underpinning technique of having extended out.The base of both technologies
Present principles and basic construction method are identical, and its difference is that jacked pile does not consider to be pressed into resilience, and pretest pile is in this respect
Consider more perfect.Pretest pile underpinning technique is mainly used in underpinning dilapidated house, ground foundation strengthening, and pile foundation strengthens, large-scale
Equipment Foundations incline the aspects such as rectifying by jack up, and all kinds of stakes that the technology can be in advance to using apply a prestress, and usual
The method for obtaining applying prestress size is read by pre-setting instrument pressure table, is needed after the completion of prestress applying
Removing jack carries out envelope stake work, tedious process and duration lengthening.How succinct fast effect obtains the size for applying prestress,
With realize prestress apply after the stake of quick envelope be the problem that needs in pretest pile underpinning technique to solve.
Utility model content
The purpose of this utility model is to provide a kind of pretest pile static pressure bringing device, is applied using a kind of pretest pile static pressure
Device is solved when prestress is applied to stake, it is impossible to succinct to be quickly obtained applied prestressed size with the stake of quick envelope
Problem.
The technical scheme of offer of the present utility model is：A kind of pretest pile static pressure bringing device, including cast-in fixing bolt, counter-force
Frame, screw jack, manual tensiometer and steel plate cushion block, described cast-in fixing bolt one end are arranged in foundation platform；Pre-buried anchor
The bolt other end and reaction frame threaded one end are connected, and reaction frame is supported on foundation platform with cast-in fixing bolt connection end；Spiral is very heavy
Top welded top is in the inner chamber beam surface of reaction frame；Manual tensiometer is arranged on the handle of screw jack；Metal mat
Block is arranged on prestress stake top portion and screw jack bottom centre position.
Described reaction frame is I-shaped steel frame, and described reaction frame has left supporting leg and right supporting leg.
With prestress stake on the same axis, described screw jack has for described screw jack welding position
Self-locking function.
Described cushion block quantity is at least one piece cushion block, and described cushion block is the steel plate of 350mm × 350mm × 20mm.
Described cast-in fixing bolt anchorage depth and foundation platform consistency of thickness, cast-in fixing bolt use high duty metal material.
Described left supporting leg and right supporting leg respectively install two cast-in fixing bolts.
Using the technical solution of the utility model, cast-in fixing bolt is set by way of built-in fitting on the basis of first, with
Foundation platform is poured together, cushion cap thickness based on anchorage depth；Reaction frame is arranged on foundation platform by cast-in fixing bolt
On, and by screw jack welded top on the crossbeam of reaction frame, welding position makes screw jack exist with prestress stake
On same axis.Cushion block is that many chip sizes are the steel plate of 350mm × 350mm × 20mm, for filling screw jack and pre-add
Space between stress stake, screw jack has self-locking function, and manually tensiometer controls screw jack to pre-add
Stress stake applies prestress, so as to realize function of the present utility model.
Reaction frame of the present utility model is I-shaped steel frame, and described reaction frame has left supporting leg and right supporting leg, is used
I-shaped steel frame, I-shaped hardness of steel is high, highly reliable, and supporting leg can bear bigger load.
Screw jack welding position of the present utility model is with prestress stake on the same axis so that jack is being made
With when will not produce skew and crooked so that preferably stress, described screw jack has self-locking function, is applying
Convenient control during Prestressing.
Cushion block quantity of the present utility model is at least one piece cushion block, and described cushion block is 350mm × 350mm × 20mm's
Steel plate, can by cushion block increase and reduce adjust jack raising and lowering highly, cushion block be 350mm × 350mm ×
The steel plate of 20mm, had both facilitated and has installed and transport, and was also convenient for adjustment position, improve operating efficiency.
Cast-in fixing bolt anchorage depth of the present utility model and foundation platform consistency of thickness, pre-buried depth can ensure pre-buried deeply
Crab-bolt is more firm, and cast-in fixing bolt uses high duty metal material, and high duty metal increased by force intensity, improve reliability.
Left supporting leg of the present utility model and right supporting leg respectively install two cast-in fixing bolts, by the way of left and right is installed,
Can ensure that supporting leg is more stable without producing displacement.
Manually tensiometer control screw jack applies prestress to prestress stake, is led to by the reading of tensiometer
Crossing jack top power computing formula can quickly draw exerting oneself for current jack, when prestress design load is reached when exerting oneself,
The auto-lock function of screw jack can play a part of to seal stake temporarily, and the screw thread of screw jack is welded can play succinct
Quick long envelope stake effect.
In sum, using the technical solution of the utility model, can solve when prestress is applied to stake, it is impossible to letter
The clean problem for being quickly obtained applied prestressed size and the stake of quick envelope.
Brief description of the drawings
Fig. 1 is the utility model structural representation elevation；
Fig. 2 is the utility model structural representation cast-in fixing bolt layout drawing；
Marked in figure：1st, cast-in fixing bolt, 2, reaction frame, 3, screw jack, 4, manual tensiometer, 5, steel plate cushion block, 6,
Prestress stake.
Specific embodiment
The utility model is described in detail below in conjunction with accompanying drawing.
Referring to shown in Fig. 1~2, a kind of pretest pile static pressure bringing device, including cast-in fixing bolt 1, reaction frame 2, spiral are very heavy
Top 3, manual tensiometer 4, steel plate cushion block 5 and prestress stake 6, the one end of cast-in fixing bolt 1 is arranged in foundation platform；Cast-in fixing bolt
1 other end and the threaded one end of reaction frame 2 are connected, and reaction frame 2 is supported on foundation platform with the connection end of cast-in fixing bolt 1；Spiral thousand
3 welded tops of jin top are in the inner chamber beam surface of reaction frame 2；Manual tensiometer 4 is arranged on the handle of screw jack 3；
Steel plate cushion block 5 is arranged on the top of prestress stake 6 and the bottom centre position of screw jack 3.
During experiment, according to device needs, be ready to cast-in fixing bolt 1, reaction frame 2, screw jack 3, manual tensiometer 4,
Steel plate cushion block 5 and prestress stake 6.
First by way of built-in fitting on foundation platform install cast-in fixing bolt 1, poured with foundation platform together with, anchor
Gu cushion cap consistency of thickness based on depth, it is ensured that cast-in fixing bolt 1 will not cause situation about extracting to occur because of pulling force, improve
Reliability.
In order to increase the intensity of reaction frame 2, reliability is improved so that supporting leg can bear bigger load, the utility model
Reaction frame 2 select I-shaped steel frame, reaction frame 2 welds left supporting leg and right supporting leg, and left supporting leg and right supporting leg are respectively pacified
Fill two cast-in fixing bolts 1.
After the construction of cast-in fixing bolt 1 is finished, reaction frame 2 is arranged on foundation platform by cast-in fixing bolt 1.
Then using welding basis and by the welded top of screw jack 3 on the crossbeam of reaction frame 2, welding position makes spiral shell
Rotation jack 3 is with prestress stake 6 on the same axis so that jack will not be produced when effect and offset and crooked,
So as to preferably stress.
It is 350mm × 350mm × 20mm thick steel plate cushion block 5 to prepare many chip sizes, for fill screw jack with it is pre-
Plus the space between stress stake.
Space between observation screw jack and prestress stake, fills in steel plate cushion block 5 as needed, and cushion block is selected
The steel plate of 350mm × 350mm × 20mm, can by cushion block increase and reduce adjust jack raising and lowering highly,
Cushion block is the steel plate of 350mm × 350mm × 20mm, has both facilitated and has installed and transport, and is also convenient for adjustment position, improves work effect
Rate.
Screw jack 3 has self-locking function, be unlikely to occur jack because it is unattended when there is misoperation.
Manual tensiometer 4 is installed on its handle, manually the control screw jack 3 of tensiometer 4 is to prestress stake 6
Apply prestress, pushing up power computing formula by screw jack 3 by the reading of manual tensiometer 4 can quickly draw current thousand
What jin was pushed up exerts oneself.
When prestress design load is reached when exerting oneself, the auto-lock function of screw jack 3 can play the work of interim envelope stake
With being welded screw thread can realize the succinct quick stake effect of envelope long.
The above, is only preferred embodiment of the present utility model, not makees any formal to utility model type
Limitation, it is any without departing from technical solutions of the utility model content, according to technical spirit of the present utility model to above example
Any simple modification, equivalent variations and the modification made, still fall within the range of technical solutions of the utility model.
Claims (6)
1. a kind of pretest pile static pressure bringing device, including cast-in fixing bolt（1）, reaction frame（2）, screw jack（3）, manual pulling force
Meter（4）, steel plate cushion block（5）With prestress stake（6）, it is characterised in that：Described cast-in fixing bolt（1）Held installed in basis one end
In platform；Cast-in fixing bolt（1）The other end and reaction frame（2）Threaded one end is connected, reaction frame（2）With cast-in fixing bolt（1）Connection end branch
Hold on foundation platform；Screw jack（3）Welded top is in reaction frame（2）Inner chamber beam surface on；Manual tensiometer（4）
Installed in screw jack（3）Handle on；Steel plate cushion block（5）Installed in prestress stake（6）Top and screw jack（3）
Bottom centre position.
2. a kind of pretest pile static pressure bringing device according to claim 1, it is characterised in that：Described reaction frame（2）For
I-shaped steel frame, described reaction frame（2）There are left supporting leg and right supporting leg.
3. a kind of pretest pile static pressure bringing device according to claim 1, it is characterised in that：Described screw jack
（3）Welding position and prestress stake（6）On the same axis, described screw jack（3）With self-locking function.
4. a kind of pretest pile static pressure bringing device according to claim 1, it is characterised in that：Described cushion block（5）Quantity
It is at least one piece cushion block（5）, described cushion block（5）It is the steel plate of 350mm × 350mm × 20mm.
5. a kind of pretest pile static pressure bringing device according to claim 1, it is characterised in that：Described cast-in fixing bolt（1）
Anchorage depth and foundation platform consistency of thickness, cast-in fixing bolt（1）Using high duty metal material, described cast-in fixing bolt（1）With
Foundation platform is poured together.
6. a kind of pretest pile static pressure bringing device according to claim 2, it is characterised in that：Described left supporting leg and the right side
Supporting leg respectively installs two cast-in fixing bolts（1）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621230012.4U CN206233276U (en) | 2016-11-16 | 2016-11-16 | A kind of pretest pile static pressure bringing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621230012.4U CN206233276U (en) | 2016-11-16 | 2016-11-16 | A kind of pretest pile static pressure bringing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206233276U true CN206233276U (en) | 2017-06-09 |
Family
ID=58991301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621230012.4U Active CN206233276U (en) | 2016-11-16 | 2016-11-16 | A kind of pretest pile static pressure bringing device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106400859A (en) * | 2016-11-16 | 2017-02-15 | 贵州正业工程技术投资有限公司 | Static pressure applying system for pretest pile |
| CN107419725A (en) * | 2017-08-28 | 2017-12-01 | 山东大学 | A kind of system and method for strengthening trans reaction frame tensile property |
| CN108316328A (en) * | 2018-03-02 | 2018-07-24 | 中铁上海工程局集团有限公司 | A kind of pressurization sinking device and its construction method for open caisson construction |
| CN109183867A (en) * | 2018-11-12 | 2019-01-11 | 中铁西北科学研究院有限公司 | A kind of non-disturbance is adjusted fast short stopping and inclines method |
| CN114319462A (en) * | 2021-12-23 | 2022-04-12 | 云南大学 | Construction method and stress device for limiting sinking and floating of existing building foundation |
-
2016
- 2016-11-16 CN CN201621230012.4U patent/CN206233276U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106400859A (en) * | 2016-11-16 | 2017-02-15 | 贵州正业工程技术投资有限公司 | Static pressure applying system for pretest pile |
| CN107419725A (en) * | 2017-08-28 | 2017-12-01 | 山东大学 | A kind of system and method for strengthening trans reaction frame tensile property |
| CN107419725B (en) * | 2017-08-28 | 2019-01-25 | 山东大学 | A kind of system and method enhancing trans- reaction frame tensile property |
| CN108316328A (en) * | 2018-03-02 | 2018-07-24 | 中铁上海工程局集团有限公司 | A kind of pressurization sinking device and its construction method for open caisson construction |
| CN109183867A (en) * | 2018-11-12 | 2019-01-11 | 中铁西北科学研究院有限公司 | A kind of non-disturbance is adjusted fast short stopping and inclines method |
| CN114319462A (en) * | 2021-12-23 | 2022-04-12 | 云南大学 | Construction method and stress device for limiting sinking and floating of existing building foundation |
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